arm64 support

[juliays]

Describe the bug

Mac with M1Chip, Installed Focal Ubuntu Desktop and tried running the following -

"cargo install cargo-tarpaulin" in terminal

received the following errors -

error[E0412]: cannot find type Persona in this scope
--> /home/songy/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-tarpaulin-0.20.1/src/process_handling/linux.rs:25:26
|
25 | const ADDR_NO_RANDOMIZE: Persona = 0x004_0000;
| ^^^^^^^ not found in this scope

error[E0412]: cannot find type Persona in this scope
--> /home/songy/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-tarpaulin-0.20.1/src/process_handling/linux.rs:26:20
|
26 | const GET_PERSONA: Persona = 0xFFFF_FFFF;
| ^^^^^^^ not found in this scope

error[E0412]: cannot find type Persona in this scope
--> /home/songy/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-tarpaulin-0.20.1/src/process_handling/linux.rs:75:25
|
75 | fn personality(persona: Persona) -> nix::Result<c_int> {
| ^^^^^^^ not found in this scope

error[E0425]: cannot find value INT in this scope
--> /home/songy/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-tarpaulin-0.20.1/src/process_handling/breakpoint.rs:60:21
|
60 | intdata |= (INT << self.shift) as i64;
| ^^^ not found in this scope

Some errors have detailed explanations: E0412, E0425.
For more information about an error, try rustc --explain E0412.
error: could not compile cargo-tarpaulin due to 4 previous errors
warning: build failed, waiting for other jobs to finish...
error: failed to compile cargo-tarpaulin v0.20.1, intermediate artifacts can be found at /tmp/cargo-installkkBgJi

[xd009642]

So arm64 support will come via #549, ptrace is beyond broken in MacOS so previous experiments to get it work went nowhere. So if you follow that issue I'll close this one as a duplicate